Garage-heater



OTTO J. KUENnoLn, onnvnnnnn,

ooivirnntr, or otnvntnnn, onio, n CORPORATION OrOHIO.

@Annen-HEATER.

To du 'whom it may concern Be it known that l', (LHTTO J'. lUnNnoLn,citizen oi the United States, residing at Cleveland, in the county ofCuyahoga and State of hio, have invented certain new and usefulimprovements in Garage-Heaters, or which the following is aspeciiicati'on.

rl"his invention relates to heating devices, and more particularly toheating devices including a burner in a closed or substantially Closedchamber, such asthe heating chamber for the oven oi an ordinary gasrange, or the burner chamber'oit a garage heater or the like. a

The invention has particular relation to the means or mechanism forligniting` the burner, its object being to provide yigniting means whichis simple to operate, which is not liable to get out oi order inVservice, and which can be made and sold at lovv cost.

Further objects oi' the invention are in part obvious and in part Vwillappear more in detail hereinafter.

The invention comprises the construction and arrangement oi? partshereinafter described and claimed.`

ln the drawings, Which represent one embodiment oil the invention,Figure 1 is a broken out sectional elevation through a portion oi onelorinoi garage `heater enibodying the invention; Fig. 2 is a irontelevation, on a larger scale, oi' the igniting device; Fig. 3 is asectional elevation on the line 3 3, Fig. 2, looking in the direction ofthe arrows; Fig. 4 is a detail section of an igniting pencil; and Fig. 5is a detail section corresponding to Fig. 3, and illus trating amodification.

' The invention is capable of application to any form of heating devicewhere the burner is `Within a chamber and therefore diiiic'ult toreachfor igniting purposes, or Where for any reason it is desirable toignitev a burner Within a chamber from the outside thereof. For purposesoi illustration and not in any sense as limiting the invention it hasbeen shown applied to a garageheater of the same general formillustrated in my prior application for heaters for garages and otherpurposes, iiled December 13, 1915, Serial No. 66,652, to which referencemay loe had for a more complete description of the heater."

The heater as a `Whole maybe of any suitable or desired construction,the present nio, nssrenon 'ro THE sornnTIFIo Specification of LettersPatent.

Application filed May 6, 19178. "Serial No. 232,772.`

outer open atmosphere.

irren sterne rnrnnr onrion HEATER ratenteaineb. a,l V1920'.

invention being concerned more particularly with the igniting device. jNevertheless,the heater is preferably constructed along safe lines tomeet requirements of `the tire =under Writers, Who desire no access oftheflianie to inflammable gases in the open atmosphere of the garage,such as is possible, for eX- aniple,in a heater having an openable doorthrough `which a lighted match or `taper is inserted ior lighting theburner.` The present heater is therefore constructedto avoid allpossibility ot Contact of the'i'iame With theopen atmosphere. y l

As illustrated theheater comprises a suitable outer casing or jacket 1supported upon the floor and having both its bottom and top open to theatmosphere. Vithinsaidouter `jacket is a hollow drum 2 which is ofairtight construction, except for an outlet at the rear through whichtheproducts of combustion are discharged and a screened inlet 3 throughwhich air is admitted iorfconr bust-ion to the inner drum chamber.1Within the `drum is a gas burner i connected to a supply pipe 5 havingVthe usual regulatingvalvel 6. lThe screen 3 may be of single or doubleform, its function being to permit air for combustion to flow to theburner and at the same time to prevent passage of lthe flame from theinner drum chamber to the The front Wall of theheater is provided with aplate 7 through which'the supply pipe 5 extends, and which plate alsoserves to support a pilot light and the igniting'devices to be referredto.k This plate has a Window S through which the flame oan'be inspectedand is also provided with an Opening 9 closed by a metal frame 10`securely bolted or otherwise secured to said plate. ln, said `frame isan opening 11 through Which extends a pilotburner 12 `having va valve 13and connected by a lpipe 14 to the supply pipe The pilot burner 12 islocated adjacent to the burner 4, so that the pilot flame, Whenburning,7will ignite the jets of the main burner. Y i f The ignitingdevice for` the pilot burner is so arranged as to be capable ofactuation from the outside of the heating drum` and neverthelessprevents passage/of `flame to the outside of said drum. Saidignitingdevice preferably includes a piece oi" pyro phoric material, Which is asubstance of Well known characteristics,k together with a roughenedmember for rubbing the same y portion of the milled surface 16 lies atone side of and horizontally opposite the inner end ofthe pilot burner12.

Beneath therubbing member 15 the iframe 10 is provided with a boss 19having. a hollow passage 20 whose axis is perpendicular to the shaft 17and lies directly opposite the rubbing member 15. Said boss 19 is alsoprovided with, suitable'means igor normally closing the passage 20. For.this purpose, it isprovided with a second opening or channel 21intersecting the passage 20, said channel 21 having a seat 22 at itslower end. 1n the channel 21 is a closing member tor the channel 20,such, forexample, as a fairly large ball23 normally held by gravity or alight spring to the seat 22, and which, when in position on said seat,closes the passage 2O and prevents the passage of any flame from theinner drum chamber to the outside of. the heater. The ball 23 may beinserted through the upper end oiE the passage 21, whichl issubsequent-ly closed by a suitable plug 24. Y

.Asillustrated in Fig. e the passage closing member may be a plunger 23ahaving a roundedlower end to lit the seat 22 and held to its seat eitherby gravity or a light spring 25; beneath the plug 241'. The same kind ofspring may beused in connection with: the ball 23,if desired.

The purposeofthe passage 20 is to enable a suitable device to beinserted therethrough into coperating relation with the member 15:, sothat rotation of said member in contact with said devicewill produceincandescence to ignite the pilot burner. The device shown forthispurpose is a tubular pencil 27 shown in Fig. aand to one end .oit whichis secured a small piece 28 ot pyroplioric nic.- terial. The pencil 27is slightly longer than the channel 20 so that .it can be pushedtherethrough to bring theA pyrophoric material into contact with themember 15, rotation of which against said material producesincandescence and ignites the pilot burner. The opposite/end of thepencil is hollow, the cavity therein serving to hold an ordinary match=29;l Said tube 27 may have a suitable stop for the inner end of theVmatch, such, as the' bent, tongue 30. In` case theypyroriphoric;material,iswvorn out orbroken so member 15 so thatrotation ol' said member l will again produce incandescence and a flashVand therefore light the pilot burner.

insertion oi the pencil 27 pushes the passage closing member 23 or 23ainto its channel 2l, and upon removal et' said pencil the closing memberreturns to its normalposition and closes the passage. p K

The tube 27 and passage 2O are of such size and length that when a matchis used the retraction of said match through the small channel will putout the match flame. The return of the ball 23 Ato its seat also as'isists in extinguisbiiig` the match llame. Consequently there is noliability of communicating flame to the outside air.

The construction described is simple and offers perfect protectionagainst the possibility of igniting inde imable gases in thc garage. itthe same time the pyrophoric material is normally held away from therubbing member 15 and Vcan therefore be wiped dry, that it will alwaysoperate properly.

lllhat l claim is:

1. ln combination, a casing provided with a burner chamber, a burnerwithin said chamber, one wall of said cham-ber being provided with anopening through which an igniting member may be inserted, means normallyclosing said opening and operable to open the same only by insertion votsaid member, and a rubbing member within said chamber operable from theoutside thereof.

2. In combination, a casing providedwith a burner chamber, a `burnerwithin said chamber', one wall of said chamber being provided withapassage through which an igniting member may be inserted, anda yieldingvalve normally obstructing and closing said passage between itsl endsand operable to open the same only by insertion of said member. f

ln combination, a casing provided with a. burner chamber, a burnerwithin said chamber, one wall oi" said chamber being lprovided with apassage, an igniting member for insertion through said opening,

`said member being arranged to support a device capable when rubbed ofproducing incandescence, a rubbing member within said chamber beyond theend of said passage aiid operable trom the outside oi: said chamber, andmeans normally, closing'said passage and operable to open the same onlyby insertion of said member. Y

l. ln combination, a casing provided with a burner chamber, a burnerwithin said chamber, one wall of said chamber. being provided with apassage, an igniting'pencil for insertion through said passage andadaptedto substantially lill the same, and a cooperating rubbing memberWithin said chamber beyond the end of said passage and operable from theoutside of said chamber, said pencil at one end carrying a piece ofpyrophoric material.

5. In combination, a casing provided With a burner chamber, a burnerWithin said chamber, one Wall of said chamber being provided with apassage, an igniting pencil for insertion through said opening andadapted to substantially lill the same, and a coperating rubbing memberwithin said chamber and operable vfrom the outside thereof, said pencilat one end carrying a piece of pyrophoric material and at the other endybeing arranged to support a match.

6. In combination, a casing provided with a burner chamber, a burnerWithin said chamber, one Wall of said chamber being provided with apassage, an igniting pencil for insertion through said opening andadapted to substantially fill the same, a cooperating rubbing memberwithin said chamber and operable Jfrom the outside thereof, and yieldingmeans normally closing said passage and operable to open the same onlyby insertion of said pencil.

7. In combination, a casing provided with a burner chamber, a burnerWithin said chamber, one Wall of said chamber being provided With apassage, an igniting pencil lor insertion through said opening andadapted to substantially fill the same, a

cooperating rubbing member Within said chamber and operable from theoutside thereof, said pencil at one end carrying a piece of pyrophoricmaterial, and yielding means normally closing said passage and operableto open the same only by insertion of said pencil. v

8. In combination, a casing provided With a burner chamber, a burnerWithin said chamber, one Wall of said chamber being provided with apassage, an igniting pencil 'for insertion through said opening andadapted to substantially lill the same, a cooperating rubbing memberWithin said chamber and operable from the outside thereof, said pencilat one end carrying a piece of pyrophoric material and at the other endbeing arranged to support a match, and yielding means normally closingsaid passage and operable to open the same only by insertion of saidpencil.

9. In combination, a casing provided With a burner chamber, a burnerWithin said chamber, one Wall of said chamber being provided with acylindrical passage, an igniting pencil insertible through said passageand substantially filling the same, a coperating rubbing member Withinsaid chamber, said Wall having a passage intersecting said firstpassage, and a yielding device in said second passage adapted tonormally close said first passage.

In testimony whereof I aiiix my signature.

OTTO J. KUENHOLD.

